Class actions (pozew grupowy) – current state

A consumer goods company operating across three Polish voivodeships receives coordinated complaints from several hundred customers alleging the same product defect. Management asks: can those claimants band together and sue as a group? The answer, under Polish procedure, is yes – but the path from individual grievance to certified group action is more demanding than many clients expect.

Polish group litigation is governed by the Act on the Pursuit of Claims in Group Proceedings (ustawa o dochodzeniu roszczeń w postępowaniu grupowym, the Group Proceedings Act), which sets a minimum threshold of ten claimants for a case to proceed as a group action. The court first certifies the group, then adjudicates the merits – a two-stage process that can span two to five years from the initial filing. Claims must share a common factual and legal basis, and the lead plaintiff (group representative) carries procedural responsibility for all members.

This guide walks through each procedural step, flags the most common pitfalls, and sets out three business scenarios where group proceedings become either an effective enforcement tool or a serious litigation risk. The structure follows the lifecycle of a Polish group action: eligibility and certification, the merits phase, cost mechanics, and strategic considerations for defendants and claimants alike.

What claims qualify for group proceedings in Poland?

Polish group litigation is not available for every dispute. The Group Proceedings Act limits eligibility to claims of the same kind, arising from a common or similar factual basis. Consumer protection, product liability, and tort claims are the most frequent categories. Contract claims also qualify, provided the underlying facts are sufficiently uniform across claimants.

The minimum group size is ten persons. In monetary claims, each member's demand must be expressed as a fixed amount. The court will reject certification if individual circumstances differ so substantially that uniform adjudication is impractical. This is the first filtering mechanism – and it eliminates a significant portion of would-be group actions at the outset.

Certain claim types are expressly excluded. Personal injury claims for non-pecuniary damage (pain and suffering) cannot be pursued collectively. Intellectual property disputes and employment claims follow separate procedural tracks. Claimants in those areas should consider individual litigation or, where a cross-border dimension exists, arbitration – our guide on disputes practice in Poland sets out the available options.

At least ten claimants with claims of the same kind
Common or similar factual basis across all members
Monetary claims expressed as uniform individual amounts
No personal injury (non-pecuniary) or employment claims
Lead plaintiff must be a natural person or consumer organisation

One practical point often overlooked: the lead plaintiff (group representative) assumes full procedural standing. They instruct counsel, receive court correspondence, and bear formal responsibility for costs. Choosing the wrong representative – for instance, a claimant with a weaker individual case – can undermine certification prospects and expose the entire group to adverse cost orders.

How does the certification stage work – and how long does it take?

Certification is the gateway to group proceedings. The court examines whether the statutory requirements are met: minimum group size, commonality of claims, and procedural eligibility of the representative. The certification hearing is adversarial – the defendant may, and typically does, challenge each element. A certification decision can take six to eighteen months in first instance, depending on court workload and complexity.

The filing itself requires a written statement of claim specifying each group member by name, the basis of their individual claim, and the common legal theory binding the group. The court then publishes a notice in a manner it considers appropriate – historically in a national daily newspaper, though digital publication is increasingly accepted. This publication period, during which additional claimants may join, typically lasts one to three months.

Our team secured group certification for a consumer products dispute involving over 300 claimants in the Mazowieckie region (autumn 2025). The defendant challenged commonality at every turn. We obtained certification within fourteen months by anchoring the common basis to a single product specification document that applied uniformly across all purchase contracts.

The certification decision is subject to interlocutory appeal. A defendant who loses at first instance may appeal to the court of appeal, adding a further three to six months before merits proceedings begin. This delay is a deliberate litigation tactic. Claimant counsel should budget for it and advise group members accordingly. The National Court Register (Krajowy Rejestr Sądowy, KRS) can be consulted to verify the defendant's registered address and financial standing before filing.

What does the merits phase involve – and what are the realistic timelines?

Once certification is final, proceedings shift to the merits. The court adjudicates liability across the group as a whole, then – if liability is established – moves to a second sub-stage addressing the amount owed to each member. This bifurcated structure means a group action can produce two separate judgments, each independently appealable. Total duration from certification to final award: two to four years in contested cases.

Evidence rules follow the standard civil procedure framework under the Kodeks postępowania cywilnego (Code of Civil Procedure, KPC). Expert witnesses are common in product liability and financial mis-selling cases. Each side may submit written expert opinions; the court may appoint its own expert if the parties' opinions diverge. Expert fees in complex cases can reach PLN 100,000 or more, and they are borne initially by the requesting party.

For defendants, the merits phase presents a strategic window. A well-documented defence on causation – arguing that individual circumstances differ enough to break the common factual basis – can persuade the court to disaggregate the group. This is harder after certification, but not impossible. The Polish Financial Supervision Authority (Komisja Nadzoru Finansowego, KNF) is the relevant supervisory body when group actions target financial institutions, and its regulatory findings may be adduced as evidence.

Settlement during the merits phase is common. Courts actively encourage it. A settlement must be approved by the court and requires consent from more than half of the group members by value of claims. This supermajority requirement is a practical constraint – a minority of holdouts can block a commercially sensible resolution. Claimant counsel should address settlement authority in the group representative agreement from the outset.

For context on how Polish judgments interact with cross-border enforcement, see our detailed analysis of enforcing a Luxembourg judgment in Poland – the reciprocal enforcement principles apply equally to Polish group-action awards sought abroad.

How are costs structured in Polish group proceedings?

Cost mechanics in group actions differ from ordinary litigation in one important respect: the lead plaintiff bears primary liability for court fees and, potentially, adverse cost orders. The court filing fee for monetary claims is calculated as a percentage of the total amount claimed, capped at PLN 200,000. For a group claiming PLN 10 million in aggregate, the upfront fee can therefore approach that ceiling – a significant barrier for individual claimants acting without litigation funding.

Litigation funding is available in Poland, though the market is less developed than in England or the Netherlands. Funders typically require a minimum aggregate claim value and take a percentage of recovery. Claimants should review funder agreements carefully: some contain provisions that give funders settlement veto rights, which can conflict with the statutory supermajority rule described above.

We obtained interim asset preservation measures protecting claims worth over EUR 3 million for a retail consumer group in Małopolska (spring 2025). The interim application was filed alongside the main claim, preventing the defendant from dissipating assets during the lengthy certification process. Asset preservation orders under Polish civil procedure can be granted within days of application if urgency is established.

Adverse cost orders follow the loser-pays principle. If the group loses on the merits, the representative faces an order to pay the defendant's reasonable legal costs. These costs are assessed by the court and, in large commercial cases, can reach several hundred thousand PLN. The representative's personal exposure is one reason why institutional claimants – trade associations, consumer organisations – are often better placed to act as group representatives than individual consumers.

For group actions involving corporate group structures – where a parent company and its subsidiary are joint defendants – the analysis of liability allocation across entities is material to both the claim strategy and the cost risk. Our article on subsidiary liability in Polish corporate groups addresses this directly.

To discuss how group proceedings apply to your situation, email info@kordeckipartners.com. Every group action has a different cost profile. Your company's specific exposure – whether as claimant or defendant – requires a tailored assessment before the certification stage closes the door on certain strategic options. We will map the claim structure, cost exposure, and realistic timeline for your case.

Three business scenarios: when does group litigation matter most?

Understanding the procedure in the abstract is useful. Seeing it applied to concrete business situations is more so. The three scenarios below represent the most frequent configurations we encounter: a manufacturing company facing a product recall, an IT services provider hit by a data breach claim, and a foreign investor targeted by coordinated consumer complaints.

Scenario 1 – Manufacturing (product liability). A Silesian manufacturer discovers a component defect affecting units sold over a three-year period. Several hundred buyers file coordinated complaints. The common factual basis – a single defective specification applied across all units – makes this a strong certification candidate. The manufacturer's best defence is to challenge the uniformity of damage: some buyers suffered no actual loss, others replaced the component at low cost. Disaggregating the damage quantum at the merits stage, rather than fighting certification, is often the more cost-effective strategy.

Scenario 2 – IT/data breach. A Warsaw-based software company suffers a data breach affecting 15,000 Polish users. Under the General Data Protection Regulation (GDPR) and Polish data protection law, affected users may claim non-pecuniary damages. However – and this is a common misconception – non-pecuniary claims are excluded from the Group Proceedings Act. Each user must sue individually, or a consumer organisation must bring a representative action under the separate 2023 representative actions framework. The IT company faces a different procedural risk than a product liability defendant.

Scenario 3 – Foreign investor. A German retail investor enters the Polish market through a subsidiary. Coordinated consumer complaints allege mis-selling of a financial product. The Polish Financial Supervision Authority (KNF) opens a parallel investigation. The group action and the regulatory proceeding run concurrently. The investor must manage both tracks simultaneously: litigation strategy in the civil courts and regulatory engagement with the KNF. A finding by the KNF adverse to the investor will almost certainly be relied upon by claimant counsel in the group proceedings.

For a tailored strategy on defending or pursuing group proceedings, reach out to info@kordeckipartners.com. Your company's position – whether claimant, defendant, or a corporate group member with indirect exposure – shapes every procedural choice. We will identify the correct procedural track, assess certification risk, and advise on settlement windows before they close.

Frequently asked questions

Q: How long does a Polish group action take from filing to final judgment?

A: The full lifecycle – certification, merits, and any appeals – typically runs between three and six years in contested cases. Certification alone can take six to eighteen months at first instance, with a further three to six months if the defendant appeals. Claimants should treat this as a long-term commitment and structure group representative agreements accordingly. Settlement before the merits phase concludes is common and can shorten the timeline significantly.

Q: Can a foreign company be a defendant in Polish group proceedings?

A: Yes. Polish courts have jurisdiction over foreign defendants where the harmful event occurred in Poland or where the defendant has a registered branch or subsidiary in Poland. A common misconception is that a foreign parent company is shielded by its Polish subsidiary's separate legal personality. Under certain conditions – addressed in Polish corporate group doctrine – the parent's conduct may be attributed to the Polish entity, expanding the scope of the claim. The National Court Register (KRS) filing for the Polish subsidiary is the starting point for establishing jurisdictional grounds.

Q: What is the difference between a group action and the new representative actions framework?

A: The Group Proceedings Act governs traditional group litigation where individual claimants join as named members. The representative actions framework, implemented in Poland in 2023 to transpose the EU Representative Actions Directive, allows qualified consumer organisations to bring collective redress claims on behalf of consumers without requiring each consumer to be named. The representative actions route is faster to initiate but limited to consumer claims. Non-pecuniary damages – excluded from the Group Proceedings Act – may be recoverable under the representative actions framework in certain circumstances, making it the preferred route for data breach and privacy claims.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to commercial litigation, group proceedings, and cross-border dispute resolution. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.